Chapter 10 Boiling and Condensation10-16Water is boiled at sea level (1 atm pressure) and thus at a saturation (or boiling) temperature of Tsat= 100°C in a mechanically polished AISI 304 stainless steel pan placed on top of a 3-kW electric burner. Only 60% of the heat (1.8 kW) generated is transferred to the water. The inner surface temperature of the pan and the temperature difference across the bottom of the pan are to be determined. Assumptions1Steady operating conditions exist. 2Heat losses from the boiler are negligible. 3The boiling regime is nucleate boiling (this assumption will be checked later). 4Heat transfer through the bottom of the pan is one-dimensional. PropertiesThe properties of water at the saturation temperature of 100°C are (Tables 10-1 and A-9) Electric burner, 3 kWP = 1 atm100°C Water ρσlvl====957 90600 0589175....kg / mkg / mN/mPr33hfglpl=×⋅=⋅°−2257 100 282 10421733J/kgkg m / sC J/kgCμ.
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This note was uploaded on 01/24/2012 for the course PHY 4803 taught by Professor Dr.danielarenas during the Fall '10 term at UNF.